The games are in the games section of the site.
Battlemap just requires the download, you don’t have to install it. Open the program, go to file, open and select the file.
Jets are good, but not really powerful. I like that they attack at 4 instead of defend at 5 now because it makes more sense.
Heavy bombers are good, but not over powered. First off, you have to get them in range, secondly, they are now in the range of the enemy too, third, they cannot be everywhere, you are either using them against the enemy in Europe/Atlantic; Africa/Atlantic/Indian Ocean or Asia/Pacific.
Lastly, as I mentioned, AA Guns on Battleships would be wise and able to reduce the impact of all aircraft and, let’s face it, every nation that has a navy except Germany starts with a battleship, so it’s an even keel. (Pun intended.)